Interface engineered silver nanoparticles decorated g-C3N4 nanosheets for textile based triboelectric nanogenerators as wearable power sources
Interface engineered silver nanoparticles decorated g-C3N4 nanosheets for textile based triboelectric nanogenerators as wearable power sources
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DOI：
10.1016/j.nanoen.2022.106928
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发表时间：
2022-01-07
期刊：
影响因子：
17.6
通讯作者：
Ray, Samit K.
中科院分区：
文献类型：
--
作者：
Bayan, Sayan;Pal, Sourabh;Ray, Samit K.
基于纺织品的机械能量收集设备已成为可穿戴电子产品的潜在电源。我们首次报道了基于织物的摩擦纳米发电机（T-TENG）的制造，该发电机由碳纤维上负载石墨碳氮化物（g-C3N4）纳米片的银（Ag）纳米颗粒活性层组成。人们发现，通过在纳米片和碳布纤维之间引入尼龙层，负载银纳米颗粒和界面工程的组合效应可以显着增强摩擦电特性。以聚四氟乙烯作为反摩擦电材料，在机械搅拌下，AgCN/尼龙双层T-TENG可以产生高达约200 V的开路电压，并在短短30秒内将商用电容器充电至约85 V。基于 AgCN 的双层 T-TENG 摩擦电特性的改善归因于 Ag 纳米颗粒诱导主体材料的表面积、介电性能和本征电阻率的改变。除了机械冲击之外，当集成到可穿戴服装中时，T-TENG 还可以在气流和生物力学作用等来源的微小机械力的作用下产生电力输出，并且可以远程访问输出数据。基于AgCN/尼龙-聚四氟乙烯的双层T-TENG不仅在较高的工作温度下稳定，而且在高温下（高达65摄氏度）表现出更高的功率转换效率，这可以通过复合系统的能量学来解释。基于 AgCN/尼龙的摩擦纳米发电机具有卓越的输出特性和热稳定性，使其成为集成到基于纺织品的可穿戴电子设备中的潜在候选者。
Textile based mechanical energy harvesting devices have emerged out as potential power sources for wearable electronics. For the first time, we report the fabrication of a textile based triboelectric nanogenerator (T-TENG) composed of an active layer of silver (Ag) nanoparticles loaded graphitic carbon nitride (g-C3N4) nanosheets on carbon fibres. The triboelectric characteristics has been found to be dramatically enhanced upon combinatorial effect of Ag nanoparticles loading and interfacial engineering with the introduction of a nylon layer between nanosheets and carbon cloth fibres. With teflon as a counter triboelectric material, under mechanical agitation, the AgCN/nylon bi-layer T-TENG can generate an open circuit voltage of as high as similar to 200 V and charges a commercial capacitor up to similar to 85 V in only 30 s. The improvement in triboelectric characteristics of the AgCN based bi-layer T-TENG is attributed to Ag nanoparticles induced modifications of surface area, dielectric properties and intrinsic resistivity of the host material. Apart from mechanical impact, the T-TENG can generate electrical output under minute mechanical forces originating from sources like air flow and biomechanical actions when integrated to wearable clothing and the output data can be accessed remotely. The AgCN/nylon-teflon based bi-layer T-TENG is not only stable at higher operating temperatures but also exhibits a higher power conversion efficiency at an elevated temperature (up to similar to 65 degrees C), which could be explained by the energetics of the composite system. The superior output characteristics as well as thermal stability of AgCN/nylon based triboelectric nanogenerator makes it a potential candidate for integration into textile based wearable electronic devices.